Feasibility study of surfactant use for remediation of organic and metal contaminated soils
- 1 September 1997
- journal article
- research article
- Published by Taylor & Francis in Soil and Sediment Contamination: An International Journal
- Vol. 6 (5), 537-556
- https://doi.org/10.1080/15320389709383585
Abstract
In this Investigation, four surfactants were examined in a laboratory study that included testing for naphthalene solubilization capacity, suríactant sorption to soil, and treat‐ability for a sandy soil artificially contaminated with lead and naphthalene. Of interest was an examination of surfactant performance characteristics under the acidic conditions that may be required for metal removal. Although pH is recognized as a critical factor in metal sorption to soils, it did not significantly impact the solubilization ability of any of the surfactants for naphthalene. The sorption of nonionic surfactants to the soil was not affected by pH, while sorption of anionic surfactants increased as the pH decreased. Although nonionic surfactants showed better solubility enhancement for naphthalene than anionic surfactants, the latter may enhance lead desorption from the soil, presumably due to interactions between the anionic head groups of the surfactant and the Pb2+ ion. A mass balance model was used to interpret experimental data for naphthalene solubilization. The results of the study suggest that remediation of metal‐organic contaminated soils by an acidic solution (for metal removal) containing surfactants (for organic removal) may be feasible.Keywords
This publication has 26 references indexed in Scilit:
- Surfactant Adsolubilization and Modified Admicellar Sorption of Nonpolar, Polar, and Ionizable Organic ContaminantsEnvironmental Science & Technology, 1994
- Surfactant Solubilization of Organic Compounds in Soil/Aqueous SystemsJournal of Environmental Engineering, 1994
- Factors Affecting Surfactant Performance in Groundwater Remediation ApplicationsPublished by American Chemical Society (ACS) ,1992
- Solubilization of polycyclic aromatic hydrocarbons in micellar nonionic surfactant solutionsEnvironmental Science & Technology, 1991
- Simultaneous removal of dissolved organics and divalent metal cations from water using micellar-enhanced ultrafiltrationColloids and Surfaces, 1989
- Organic Pollutant Sorption in Aquatic SystemsJournal of Hydraulic Engineering, 1984
- Criteria for structuring surfactants to maximize solubilization of oil and waterJournal of Colloid and Interface Science, 1983
- Surfactant SystemsPublished by Springer Nature ,1983
- Semi-empirical estimation of sorption of hydrophobic pollutants on natural sediments and soilsChemosphere, 1981
- Sorption of hydrophobic pollutants on natural sedimentsWater Research, 1979